When migrating 10TB across transatlantic data centers with Windows Server 2008 endpoints, we're working with several technical constraints:

• 5 physical drives (2TB each) requiring sequential transfer optimization
• Average file size of 100MB (neither tiny nor enormous)
• 11MB/s theoretical bandwidth cap

Through empirical testing across similar migrations, here are observed throughput rates:

# Sample PowerShell bandwidth test
Test-NetConnection -ComputerName UK-DC01 -Port 445 | 
Select-Object @{Name="SMB Latency";Expression={$_.TcpTestSucceeded}}

This multi-threaded transfer command handles network drops and verification:

robocopy \\US-Server\D$\Data \\UK-Server\D$\Data /MIR /ZB /R:1 /W:1 /TEE /V /NP /MT:16 /LOG:C:\transfer.log

Key parameters explained:

• /MT:16 - 16 threads (adjust based on CPU cores)
• /ZB - Uses restartable mode if admin access denied
• /MIR - Mirrors directory structure exactly

For parallel transfers across all 5 drives:

# PowerShell script to launch concurrent transfers
$drives = @("D","E","F","G","H")
$jobs = foreach ($drive in $drives) {
    Start-Job -ScriptBlock {
        param($drive)
        robocopy "\\US-Server\$($drive`$)\Data" "\\UK-Server\$($drive`$)\Data" /MIR /MT:8
    } -ArgumentList $drive
}
$jobs | Wait-Job | Receive-Job

• Disable Windows Server 2008's SMB1 protocol via sc.exe config lanmanworkstation depend= bowser/mrxsmb20/nsi
• Adjust TCP window scaling: netsh int tcp set global autotuninglevel=restricted
• Schedule transfers during off-peak hours (2AM-5AM GMT typically sees less backbone congestion)

Post-transfer verification script:

$source = "\\US-Server\D$\Data"
$dest = "\\UK-Server\D$\Data"

$srcFiles = Get-ChildItem $source -Recurse | Where-Object { !$_.PSIsContainer }
$dstFiles = Get-ChildItem $dest -Recurse | Where-Object { !$_.PSIsContainer }

Compare-Object $srcFiles $dstFiles -Property Name,Length | 
Where-Object { $_.SideIndicator -ne "==" }

When migrating 10TB across continents between Windows Server 2008 instances, several technical constraints emerge:

• Legacy OS limitations (no native rsync support)
• Average file size of 100MB creates specific transfer patterns
• Data distributed across 5×2TB volumes requires parallel transfer strategies

Testing on identical hardware with 11MB/s theoretical bandwidth yielded these real-world results:

This batch script demonstrates optimal transfer configuration:

@echo off
set SOURCE=\\us-server\e$\data
set DEST=\\uk-server\d$\migrated
set LOG=C:\transfer.log

robocopy %SOURCE% %DEST% /MIR /ZB /R:1 /W:1 /MT:16 /NP /TEE /LOG:%LOG% /XD "System Volume Information" 

• /MT:16 - Enables 16-thread transfer (optimal for 100MB files)
• /ZB - Uses restartable mode with backup privilege fallback
• /MIR - Mirrors directory structure exactly

For environments requiring FTP, consider this PowerShell compression script:

$source = "E:\data"
$temp = "C:\temp\compressed\"
$ftp = "ftp://uk-server/incoming/"

Compress-Archive -Path $source -DestinationPath "$temp\batch_$(Get-Date -Format yyyyMMdd).zip"

(New-Object Net.WebClient).UploadFile(
  "$ftp/data.zip",
  "$temp\batch_$(Get-Date -Format yyyyMMdd).zip"
)

For large transfers, implement this verification PowerShell snippet:

$sourceFiles = Get-ChildItem -Recurse \\us-server\e$\data | Select-Object FullName,Length,LastWriteTime
$destFiles = Get-ChildItem -Recurse \\uk-server\d$\migrated | Select-Object FullName,Length,LastWriteTime

Compare-Object -ReferenceObject $sourceFiles -DifferenceObject $destFiles -Property FullName,Length -PassThru

When throughput drops below 11MB/s:

1. Test raw TCP throughput with iperf3
2. Verify Windows scaling heuristics with netsh interface tcp show global
3. Disable SMB signing if using file shares: Set-SmbClientConfiguration -RequireSecuritySignature $false